Patents by Inventor James H. Skelley

James H. Skelley has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4502426
    Abstract: A variable valve lift and timing mechanism for an internal combustion engine, including a non-circular secondary cam having a head, with first and second convexly curved surfaces, at a free end thereof operably interposed between and slidably contacting a fixed profile primary cam and an associated valve lifter. The secondary cam is supported at the other end for pivotal movement about a fulcrum point spaced from its head. A control unit varies the position of the fulcrum point as a function of the speed of the engine to thereby vary the amount of lift and the timing of the opening and closing of said valve. The secondary cam is supported on a pivot shaft having a bracket carried on the engine cam for movement of the pivot shaft in and arc concentric with the axis of said cam shaft. The secondary cam head is non-circular and has first and second convexly curved surfaces slidably bearing against the primary cam and lifter respectively.
    Type: Grant
    Filed: May 1, 1984
    Date of Patent: March 5, 1985
    Inventor: James H. Skelley